The city of Las Vegas is reeling following the horror and devastation of the shooting that killed at least 59 and injured more than 500 others on Sunday.

Lucy Nicholson / Reuters

By Monday, many local residents were ready to lift their city up with hope. Long lines had already began forming at blood donation centers in the early hours of the morning following the news of the mass shooting.

Therapy dogs from the Chicago-area Lutheran Church Charities were also sent to a hospital where victims are being treated. "People need just a moment of sunshine in a terrible, terrible day," said Mike Millett of the organization told ABC 7 Chicago.

NBC's Today coordinated a special and emotional reunion between a survivor and a man who saved his life. "I've been in the Army reserves for 10 years...I got my EMT shirt awhile back. I never did anything with it until the other night," James (the hero) said on air Tuesday.